The aim of this study is to evaluate the negativation time of chlamydial and gonococcal PCRs after treatment for urogenital, oropharyngeal and anal infections.

Inclusion Criteria:

• - Patients attending the Trait d'Union department at the Nouvel Hôpital Civil for PrEP consultations, AES or HIV infection.
• Over 18 years of age
• Male or female
• Who have had an uncomplicated CT and/or NG infection treated with currently recommended therapies (Ceftriaxone 500mg DU for NG infections, Doxycycline 200mg per day for 1 week for rectal CT infections and Azithromycin 1g DU or Doxycycline 7 days for other CT infections).
• Subject affiliated to a social health insurance scheme
• Subject able to understand the aims and risks of the research and to give dated and signed informed consent

Exclusion Criteria:

• - Complicated CT and/or NG infections: epididymitis, prostatitis, upper genital infection, extra-genital involvement (keratoconjunctivitis, arthritis, skin involvement, Fiessinger-Leroy-reiter syndrome, Fitz-Hugh-Curtis syndrome).
• Interfering treatments and associated diseases: Severe immunosuppression (HIV infection with CD4 less than 200/mm3, chemotherapy in the last 6 months, active haemopathy, congenital immune deficiency, immunosuppressive treatment including corticosteroid therapy for more than 4 weeks or organ transplant.
• Impossibility of giving the subject informed information (subject in an emergency situation, difficulties in understanding the subject, etc.).
• Subject under court protection
• Subject under guardianship or curatorship